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<title>Pragmas (Using the GNU Compiler Collection (GCC))</title>

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<h3 class="section" id="Pragmas-Accepted-by-GCC"><span>6.62 Pragmas Accepted by GCC<a class="copiable-link" href="#Pragmas-Accepted-by-GCC"> &para;</a></span></h3>
<a class="index-entry-id" id="index-pragmas"></a>
<a class="index-entry-id" id="index-_0023pragma"></a>

<p>GCC supports several types of pragmas, primarily in order to compile
code originally written for other compilers.  Note that in general
we do not recommend the use of pragmas; See <a class="xref" href="Function-Attributes.html">Declaring Attributes of Functions</a>,
for further explanation.
</p>
<p>The GNU C preprocessor recognizes several pragmas in addition to the
compiler pragmas documented here.  Refer to the CPP manual for more
information.
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<ul class="mini-toc">
<li><a href="AArch64-Pragmas.html" accesskey="1">AArch64 Pragmas</a></li>
<li><a href="ARM-Pragmas.html" accesskey="2">ARM Pragmas</a></li>
<li><a href="M32C-Pragmas.html" accesskey="3">M32C Pragmas</a></li>
<li><a href="PRU-Pragmas.html" accesskey="4">PRU Pragmas</a></li>
<li><a href="RS_002f6000-and-PowerPC-Pragmas.html" accesskey="5">RS/6000 and PowerPC Pragmas</a></li>
<li><a href="S_002f390-Pragmas.html" accesskey="6">S/390 Pragmas</a></li>
<li><a href="Darwin-Pragmas.html" accesskey="7">Darwin Pragmas</a></li>
<li><a href="Solaris-Pragmas.html" accesskey="8">Solaris Pragmas</a></li>
<li><a href="Symbol_002dRenaming-Pragmas.html" accesskey="9">Symbol-Renaming Pragmas</a></li>
<li><a href="Structure_002dLayout-Pragmas.html">Structure-Layout Pragmas</a></li>
<li><a href="Weak-Pragmas.html">Weak Pragmas</a></li>
<li><a href="Diagnostic-Pragmas.html">Diagnostic Pragmas</a></li>
<li><a href="Visibility-Pragmas.html">Visibility Pragmas</a></li>
<li><a href="Push_002fPop-Macro-Pragmas.html">Push/Pop Macro Pragmas</a></li>
<li><a href="Function-Specific-Option-Pragmas.html">Function Specific Option Pragmas</a></li>
<li><a href="Loop_002dSpecific-Pragmas.html">Loop-Specific Pragmas</a></li>
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